Elin, if you have a well developed root system, you should be fine taking them out of the humidity chamber, especially because they have no leaves, yet...
The reason for the humidity on young cuttings (and removing most of the leaves when taking cuttings) is that the plant actually loses water through it's leaves through a process called, "transpiration" and, until it's able to uptake water through it's roots to replace the water it loses, this can pose a problem. Leaving the young cutting in a high-humidity environment (and removing the leaves) minimizes the transpiration until the root system is developed enough to be able to uptake enough water to support the cutting.